JP2003003640A - Panel mounting structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a panel mounting structure for use in the dry construction method which can prevent infiltration of weather, the panel mounting structure dispensing with furring strips, facilitating allocation of panels, and preventing warping of the panels when they are rigidly fixed. SOLUTION: According to the structure, an upper underlap portion 1b1 of the panel 1 has step portions 1c, 1d, which protrude toward a more indoor side than a rear surface of the underlap portion 1b1, and a left end 1f of the upper underlap portion 1b1 is overlapped with and connected to the step portion 1d of another panel 1, followed by overlapping a lower end of a right underlap portion 1b2 with the step portion 1c of another panel. Further, a distance L1 between through holes each formed in the step portion 1d of the upper underlap portion 1b1 of the panel 1 or between marks 8 on the left end 1f of the same in a panel width direction is set so as to be equal to a distance between central locations of columns or studs arranged at right- and left-end joint portions of the respective panels 1 in the panel width direction. Then, nails or screws are driven directly to the columns or studs at locations of the through holes and the marks 8, to thereby fix the panels.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has panels such as interior and exterior materials for buildings arranged vertically and horizontally, and a back surface of a panel base portion of one panel and an underlap portion of the other panel are arranged in a thickness direction of the panel. A panel attached by being attached to the panel, or a front fruit of one panel projecting to the side end side from the panel base part of the panel, and a back fruit of the other panel projecting to the side end part side from the panel base part of the panel. The present invention relates to a panel mounting structure in which a panel is joined and mounted in the thickness direction of the panel.

[0002]

2. Description of the Related Art An example of a conventional mounting structure of an exterior material panel forming an outer wall surface of a building will be described with reference to FIGS.
In the first conventional example shown in FIGS. 18 (a) and 18 (b), the panel
51 has a panel 51 on one of two sides of the four sides of the panel 51.
Is formed on the rear edge of the back side of the
A table 51b is formed on the side and protrudes from the front side edge of the panel 51.

A furring strip 55 is attached to a pillar 52 and a stud 53 which are erected at a predetermined pitch with a waterproof sheet 54 interposed therebetween. The front fruit 51a of the upper end portion of the panel 51 arranged in the lower stage in the state where the front fruit 51b is joined to the panel 51 in the thickness direction of the panel 51.
A retaining metal fitting 56 for restraining is fixed to the furring strip 55 (and the pillar 52 or the stud 53) by driving the nail 57, and the concave portion 51c provided in the front end 51b of the lower end portion of the panel 51 arranged in the upper step is fixed to the stopper 51. The panel 51 is fixed by being inserted into the metal fitting 56.

The furring strip 55 forms a ventilation layer between the back surface of the panel 51 and the waterproof sheet 54 to ensure the durability of the panel 51 against moisture and the like emitted from the interior of the building, and has a width of about 30 mm. When there is no room to drive the nail 57 of the fastener 56 into the narrow stud 53, the nail 57 of the fastener 56 is also driven and fixed via the furring strip 55.

Further, as shown in FIG. 18 (c), the panel 51
A resin-based water repellent material 64 called hot melt is attached to the upper end of the inner side 51a of the upper side in the lateral direction in a later step,
This ensures the waterproof performance.

According to the above-mentioned mounting structure, rainwater invading from the vertical joints 58 or the horizontal joints 59 on the outdoor side of the panel 51 is the back 51a of the one panel 51 and the front 51b of the other panel 51. Even if it enters the mating part joined in the thickness direction, it is received by the inner lining 51a and rainwater does not enter the indoor side.

Therefore, the vertical joints between the adjacent panels 51 are adjacent to each other.
It is not necessary to apply a waterproof sealing material to the 58 and the horizontal joints 59, and the construction period can be shortened because the construction can be shortened because the construction can be shortened, and the nail heads are not nailed to the surface of the panel 51, so the nail head is the outer wall. It does not give an unsightly appearance to the surface of the panel, and even when the surface of the panel 51 is coated with an inorganic coating, it can be constructed without damaging the coated surface and the appearance of the outer wall surface can be maintained.

Further, in the mounting structure of the exterior material of the second conventional example shown in FIGS. 19 and 20 disclosed in Japanese Patent Laid-Open No. 7-62830, only the back 51a of the panel 51 is nailed to the furring strip 55. It has been proposed to drive 61 and fix it.

Also in this conventional example, since the inner and outer ears 51a of the panel 51 are arranged in abutting position 62 butted against each other on the same plane, two nails 61 are provided in the width direction of the narrow stud 53 having a width of about 30 mm. Since there is no room to drive in, the nail 61 is driven in and fixed through the wide furring strip 55.

Further, the driving positions of the nails 61 and the positions of the vertical joints 58 and the horizontal joints 59 are shifted so that rainwater that has entered from the vertical joints 58 or the horizontal joints 59 of the panels 51 does not enter the driving positions of the nails 61. Since it is necessary to drive the nail 61 near the furrow 55 and the central position 53a of the stud 53 in the state, the positions of the vertical joint 58 and the central position 53a of the stud 53 are shifted by a predetermined distance as shown in FIG. The panel 51 is being allocated in this state.

Further, as in the first and second conventional examples, the pillar
When the furring strips 55 are attached between the 52 and the studs 53 and the panel 51 to form a ventilation layer on the back surface side of the panel 51, the furring strips 55 are arranged in the height direction with respect to the total number of the posts 52 and the studs 53. Although it is continuously attached, as shown in FIG. 21, when there is an opening 63 such as a window frame sash, from the upper and lower ends of the opening 63 so that air can flow on the side surface of the opening 63. The furring strip 55 was attached at a position separated by a predetermined distance L.

[0012]

However, in the above-mentioned first and second conventional examples, in order to form the ventilation layer on the back surface side of the panel 51, a separate member is provided between the column 52 or the stud 53 and the panel 51. Since the furring strip 55 is interposed, the furring strip 55 is required in the entire height direction corresponding to the total number of columns 52 and studs 53, the number of parts increases, the cost of parts increases, and the number of construction steps also increases. Therefore, there is a problem that the construction period becomes long.

Particularly, as shown in FIG. 21, at the upper and lower ends of the opening 63, the length and attachment position of the furring strip 55 are limited, which makes the construction work troublesome. Further, the furring strip 55 is a long member and is a pillar 52.
Since it is attached along the studs 53 and the ventilation layer is formed by being partitioned in the height direction, the ventilation performance in the lateral direction (horizontal direction) is limited.

Further, in the first conventional example shown in FIG. 18, since the recess 51c of the front surface 51b of the wall panel 51 needs to be post-processed, the production efficiency of the wall panel 51 is poor.

Further, as shown in FIG. 18 (c), the panel 51
Water repellent material provided in the lateral direction of the upper end of the reverse side 51a of the upper side
Since 64 is a resin-based material called hot melt, there is a problem in that the panel 51 made of a ceramic material such as cement has to be attached in a later step, and the production efficiency of the panel 51 is poor.

In the second conventional example shown in FIGS. 19 and 20, the nails 61 are arranged side by side at the abutting portions 62 of the inner and outer joints 51a of the horizontally adjacent panels 51. The nail 61 cannot be directly driven and fixed to the stud 53 having a narrow width of about 30 mm, and it is necessary to fix the stud 53 having a wider width than the stud 53.

Further, since the left end portion of the panel 51 is only joined to the lining 51a of the other panel 51 and is not particularly fixed, there is no resistance against wind pressure or material warpage. However, there was a possibility that cracks and distortion would occur.

Further, since the inner faces 51a of the panels 51 have the same distance from the surface of the panel 51 toward the indoor side, when the plurality of panels 51 are attached, the inner faces 51a are urged against each other, and the abutting portion 51d is abutted. In, it was not possible to stop the intrusion of water from the vertical joints 58 and the horizontal joints 59, and there was a risk of water leakage to the indoor side.

Further, a predetermined distance is provided between the positions of the vertical joints 58 and the lateral joints 59 and the driving positions of the nails 61 so that the rainwater that has entered from the vertical joints 58 and the lateral joints 59 does not enter the driving positions of the nails 61. On the other hand, it is necessary to provide a distance, but the nail 61 cannot be secured in the proper fixing strength of the panel 51 unless it is driven near the center position 53a of the stud 53, so that the position of the vertical joint 58 is consequently the center position of the stud 53. Since the arrangement is displaced from the 53a by a predetermined distance, the allocation of the panels 51 to the columns 52 and the studs 53 is deviated, and the allocation work is complicated.

The present invention is to solve the above problems,
The purpose is to make it possible to perform dry construction that can prevent wind and rain from entering without filling the joints between the panels with sealing material, etc., and there is no need to post-process the panels, and the furring strips can be omitted. The number of parts and construction man-hours can be reduced,
It is an object of the present invention to provide a panel mounting structure in which panel allocation work is easy and the panel is firmly fixed to prevent cracks and distortion.

[0021]

In order to achieve the above object, a panel mounting structure according to the present invention has panels arranged vertically and horizontally such that one panel has a rear surface of a panel base portion and the other panel has a panel rear surface. A mounting structure of a panel, which is mounted by joining an underlap portion in a thickness direction of the panel, wherein a step portion is formed at a predetermined position of an end portion and / or an intermediate portion of the underlap portion on the upper side of the panel, Part of the underlap part of one panel using the step part,
A part of the underlap portion of the other panel is joined in the thickness direction of the panel, and both panels are fixed by nails or screws to a base material arranged at the joining position, in the panel mounting structure, The joints of the underlap parts of the panel are provided at the left and right ends of the same panel, and the fixing positions of the nails or screws for fixing the joints of the left and right ends of the same panel are the distances in the panel width direction from each other. It is characterized in that it is configured to be equal to the distance between the center positions in the panel width direction of the base material arranged at the joining positions of the left and right ends of the same panel.

Another configuration of the panel mounting structure according to the present invention is that the panels arranged vertically and horizontally are projected on one side end side of the panel base portion of the panel, and A mounting structure of a panel, which is attached by joining a back cover of the other panel protruding toward a side end portion side of the panel base in the thickness direction of the panel, and an end portion of the back cover of the panel upper side and / Or a step portion is formed at a predetermined position of the intermediate portion, and by utilizing the step portion, a part of the inner wall of one panel and a part of the inner wall of the other panel are arranged in the thickness direction of the panel. In a panel mounting structure in which both panels are joined to each other by a nail or a screw on the base material arranged at the joining position, joints between the inner and outer sides of the panel are provided at both left and right ends of the same panel, Joining the left and right ends of the same panel The distance between the fixing positions of the nails or screws for fixing the panels in the panel width direction is equal to the distance between the center positions in the panel width direction of the base material placed at the joining positions of the left and right ends of the same panel. It is characterized in that it is configured in.

Here, in the panel according to the present invention,
As the level position of the back surface of the panel, with the back surface of the panel base,
Three types of level positions are set for the back surface of the underlap portion or the back surface of the solid and the back surface of the stepped portion, and the level positions of these three types are set from the front surface side of the panel toward the back surface side. , The back surface of the underlap portion or the back surface of the actual back, and the back surface of the stepped portion.

Since the present invention is constructed as described above, the back surface or the front fruit of the panel base portion of one adjacent panel and the underlap portion or the back fruit of the other panel are joined in the thickness direction of the panel. Since it is installed, it is possible to make it a dry type construction that can prevent the entry of wind and rain without filling the joints between the panels with a sealing material, etc., and the construction is easy and the construction period can be shortened.

Further, since the step portion is formed at a predetermined position of the end portion of the underlap portion of the upper side of the panel or the end portion of the back side of the upper side of the panel and / or the intermediate portion, the back surface of the panel base and the base material are formed. A ventilation layer can be formed between them, and also with a part of the underlap portion of the adjacent one panel,
Since it is possible to join a part of the underlap portion of the other panel in the thickness direction of the panel by utilizing the step portion, or a part of the lining of one adjacent panel and the other panel Since it is possible to join a part of the lining with the stepped portion in the thickness direction of the panel, it is possible to secure a large area where the underlap part or the lining of each panel faces the base material. It is possible to secure a sufficient fixing margin with nails or screws.

Therefore, it is possible to eliminate the positional deviation between the vertical joint and the center position of the base material such as the pillar and the stud in the panel width direction. Furthermore, each end of the panels combined in the panel width direction can be fixed with one nail or screw, and the panel can be directly attached to the base material such as pillars or studs without the need for a furring strip as in the conventional example. It can be fixed.

In addition, a plurality of the base materials are provided in accordance with the joint positions of the underlap portions of the panel or the actual joints, and the center position of the base material in the panel width direction and the vertical joint position of the panels. When the nails or screws for fixing the panels are fixed in a position where the joints are aligned and the joints between the panels are avoided, the vertical joint positions of the panels are aligned with the center position of the base material in the panel width direction. Even in the state where it is kept, it is possible to secure the fixing margin fixed by the nail or the screw in the vicinity of the center position of the base material in the panel width direction and in the position where the joints between the panels are avoided, and while avoiding the joints between the panels Alternatively, the panel can be securely fixed to the base material with screws.

As a result, since the joint position between the panels and the center position of the base material can be matched, the work of allocating the panel to the base material is easy, and the panel can be directly fixed to the base material, so that the furring strip is omitted. The number of parts and construction man-hours can be reduced, and the construction period can be shortened.

Further, a fixing position in the panel width direction of a nail or a screw for fixing one panel fixed to the base material at the joining position of the underlap portions of the panel or the mutual connection of the back and the other and the other panel. However, in the case where it is configured to be at the center position in the panel width direction of the base material, the underlap portion or the back grain at the left and right ends of the same panel,
A state in which the vertical joint positions of the panels and the center position of the base material in the panel width direction are made to coincide with each other at the joining positions with the underlap portions or the back linings at the left and right end portions of the panels adjacent to each other in the left-right direction of the panel. However, at the center position of the base material in the panel width direction and at the position where the joints between the panels are avoided, the fixing positions of the nails or screws can be divided to the left and right and securely fixed.

Further, when a through hole or a mark is provided at a fixed position of the nail or screw of the underlap portion of the panel or the back of the panel, the nail or screw can be easily placed at a predetermined position by using the through hole or the mark. It can be fixed, and the panel can be securely fixed to the base material with a relatively narrow width,
Good workability.

When the through hole provided at the fixing position of the nail or screw of the panel is an elongated hole whose longitudinal direction is arranged in the panel width direction, the nail or screw of the panel is extended along the elongated hole. The fixing position of can be continuously adjusted in the panel width direction and easily fixed to a desired position.

Therefore, even when the center position of the base material such as a pillar or a stud is displaced in the panel width direction, nails or screws are used in the panel width direction of the base material such as a pillar or a stud by using the long holes. It can be fixed at the center position of.

A convex portion is formed on the upper surface of the panel base portion on the upper side of the panel along the panel width direction, and a groove portion corresponding to the convex portion is formed on the lower surface of the panel base portion on the lower side of the panel along the panel width direction. When the convex portion formed on the upper surface of the panel base portion of one panel is fitted into the groove portion formed on the lower surface of the panel base portion of the other panel to fix both panels, the convex portion is formed. It is possible to firmly connect the panels, which are vertically adjacent to each other, by fitting the portion and the groove portion. Therefore, the panels can be securely fixed to each other, the resistance to wind pressure and the warp of the material can be secured, and the panel can be prevented from being warped or distorted.

When a part of the convex portion is cut out at the same height as the upper surface of the panel base portion on the upper side of the panel, rainwater can be drained from the cutout portion.

When the groove is formed over the entire lower surface of the panel base on the lower side of the panel in the panel width direction, the protrusion and the groove are commonly engaged regardless of the presence or absence of the notch. Can be combined.

[0036]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a panel mounting structure according to the present invention will be specifically described with reference to the drawings. FIG. 1 is a front explanatory view showing a panel mounting structure according to the present invention, FIG. 2 is a perspective explanatory view showing a panel mounting structure according to the present invention, and FIG. 3 is a ventilation formed by the panel mounting structure according to the present invention. FIG. 4 is a perspective explanatory view showing the constitution of layers, and FIG. 4 is a front explanatory view showing a panel mounting structure according to the present invention.

Further, FIG. 5 is a perspective explanatory view showing the structure of the panel, FIG. 6 (a) is a schematic sectional view in the XX direction of FIG. 5 and a view showing an overlapping state, and FIG. 6 (b) is FIG. FIG. 7A is a front explanatory view showing the configuration of the panel, and FIG. 8A is a perspective explanatory view showing a state in which the left and right adjacent panels are joined to each other. 8 (b) is a partially enlarged view showing the joining state of the underlap portions of the left and right adjacent panels, FIG. 9 (a) is a perspective explanatory view showing the state of joining the vertically adjacent panels to each other, and FIG. [Fig. 4] is a partially enlarged view showing a joint state between the underlap portions of the vertically adjacent panels.

FIG. 10 (a) is a partially enlarged view for explaining the positions of through holes provided in the underlap portion of the panel,
FIG. 10 (b) is a partially enlarged view showing a state where a nail is driven in using a through hole provided in the underlap portion of the panel as a guide, and FIG.
(A)-(c) is a partial enlarged view explaining various through-holes provided in the underlap portion of the panel.

FIG. 12 (a) shows a state in which a convex portion formed on the upper surface of the panel base portion on the upper side of the panel and a groove portion formed on the lower surface of the panel base portion on the lower side of the panel are fitted and fixed. FIG. 12B is a cross-sectional explanatory view, and FIG. 12B is a perspective explanatory view showing the state of drainage on the upper surface of the panel.

Further, FIG. 13 (a) is a cross-sectional explanatory view showing an example in which a strip of water is provided in the underlap portion of the panel upper side, and FIG. 13 (b) is a strip of water strip in the underlap portion of the panel upper side. Is an explanatory cross-sectional view showing an example, FIG. 14 is an explanatory perspective view showing an example in which a convex portion is formed over the entire panel width direction along the panel width direction on the upper surface of the panel base portion of the panel upper side, FIG. Is a perspective explanatory view showing the configuration of the panel in which the convex portion on the upper surface of the panel base on the upper side of the panel and the groove portion on the lower surface of the panel base on the lower side of the panel are omitted, and FIG. 16 configures the outer wall surface of the building using the panel shown in FIG. It is a perspective explanatory view showing the appearance.

Further, FIG. 17A is a perspective explanatory view showing the structure of a panel having front and back fruits, and FIG.
17A is a schematic cross-sectional view in the XX direction and a diagram showing the overlapping state, and FIG. 17C is a schematic cross-sectional view in the YY direction in FIG. 17A and a diagram showing the overlapping state.

As shown in FIGS. 1 to 4, the panel mounting structure according to the present invention is a ceramic system such as cement material, concrete material, or porcelain plate material that is arranged vertically and horizontally on the outer wall surface A of a building. The exterior material panel 1 made of a material is the back surface of the panel base 1a of one of the panels 1 on the opposite sides.
1a1 and the underlap portion 1b of the other panel 1 are joined in the thickness direction of the panel 1, and a pillar 4 and a stud are erected at a predetermined pitch using nails or screws 3 with a waterproof sheet 2 interposed. 5 is fixedly attached.

The panel 1 is, for example, produced in a factory by press-molding a clay-like cement material. In the present embodiment,
As shown in FIG. 5, the panel 1 has a panel base portion 1a, underlap portions 1b are formed on the upper and left sides of the panel base portion 1a, and the underlap portion 1b is formed in the thickness direction of the panel 1. It is formed with a plurality of different step portions 1c and 1d.

In the underlap portion 1b of the panel 1, the upper side underlap portion 1b1 formed in the lateral direction of FIG. Step portion 1c protruding only by
5 is formed on the upper side underlap portion 1b1 of the panel 1, and a step portion 1d is formed at the right end of FIG. ing.

In this embodiment, the stepped portion 1 is formed at one location in the lateral center of the upper side underlap portion 1b1 of the panel 1.
The case where c is provided will be described. A plurality of step portions 1c are formed at a predetermined pitch at a predetermined position in the middle portion of the upper side underlap portion 1b1 of the panel 1 in accordance with the pitch at which the pillars 4 and the studs 5 are erected. May be.

A right side underlap portion 1b2 is formed at the right end portion of the panel 1 in FIG. 5, and the right side underlap portion 1b2 and the step portion 1d at the upper right corner of the panel 1 are formed via the inclined portion 1e. Connected continuously.

Further, the upper side underlap portion 1b of the panel 1
The left side end 1f of 1 projects by a predetermined dimension from the left side end 1g1 of the panel base, and the left side end 1f, which is a part of the upper side underlap portion 1b1 of one panel 1, of the other panel 1 Step portion 1d which is a part of the underlap portion 1b
The panels 1 are fixed to the pillars 4 and the studs 5 which are joined to the panel 1 in the thickness direction of the panel 1 and are located at the joining positions by nails or screws 3.

As shown in FIGS. 2 and 8B, the step portion 1d of the underlap portion 1b of the panels 1 adjacent to each other in the left-right direction and the left end portion 1f are joined in the thickness direction of the panel 1. The surfaces of the upper side underlap portions 1b1 are joined flush with each other and the surfaces of the panel base portions are joined flush with each other.

Further, as shown in FIG. 9B, the step portion 1c of the underlap portion 1b of the panels 1 adjacent to each other in the vertical direction and the right side underlap portion 1b2 of the panel 1 are the thickness of the panel 1. At the joining portions of the underlap portions 1b that are joined in the direction, the surfaces of the upper side underlap portion 1b1 and the right side underlap portion 1b2 are joined flush and the surface of the panel base portion is joined flush.

As a result, as shown in FIG. 2, the panel 1
And the underlap portion 1b of the panel 1
By bonding the front surface of the panel base 1a and the back surface 1a1 of the panel base 1a in the thickness direction of the panel 1, the front surface of the panel base 1a can be continuously bonded flush to form a generally planar outer wall surface A. I can.

The panel 1 of the present embodiment is provided on the rear surface side of the panel base portion 1a by the structure of the step portions 1c and 1d projecting from the rear surface of the panel 1 toward the indoor side even if the furring strip 55 employed in each of the above-mentioned conventional examples is unnecessary. A ventilation layer can be formed, and nails or screws 3 can be directly attached to the pillars 4 and the studs 5 at the steps 1c and 1d.
Fixed using.

A plurality of pillars 4 and studs 5 serving as a base material are provided upright corresponding to the positions of the step portions 1c and 1d, which are the joining portions of the underlap portions 1b of the panel 1, as shown in FIG. Steps of the underlap portion 1b in which the central positions 4a, 5a of the pillars 4 and the studs 5 and the positions of the vertical joints 6 of the panels 1 coincide with each other, and the vertical joints 6 and the horizontal joints 7 of the panels 1 are avoided. Through holes and marks 8 are formed at the positions of the portions 1c and 1d and the left end portion 1f as a guide for driving the nails or the screws 3.

As shown in FIG. 7, the left side end portions 1f provided at the left and right end portions of the upper side underlap portion 1b1 of the same panel 1 and the through holes and the marks 8 formed in the step portion 1d are separated from each other in the panel width direction. The distance L ₁ is the distance between the center positions 4a and 5a of the pillars 4 and studs 5 which are the base material and are erected at the positions corresponding to the left end 1f and the step 1d of the same panel 1 shown in FIG. It is set to be equal to the distance L ₂ .

In this embodiment, as shown in FIG. 4, the pillar 4 is formed at the joining position of the upper side underlap portions 1b1 of the panel 1.
Panel 1 of one of the panels 1 fixed to the base material such as studs or studs 5, and the fixing position in the panel width direction of the nail or screw 3 for fixing each of the other panel 1 is the panel width of the base material of the pillar 4 or the stud 5. The center positions 4a and 5a in the direction are arranged.

Further, the height positions of the through holes and the marks 8 are set with a predetermined distance from the upper end 1a2 of the panel base 1a, so that the rainwater entering from the lateral joint 7 is directly affected. There is no such thing.

Further, as shown in FIGS. 11 (b) and 11 (c),
When fixing the left end 1f and the step 1d of the panels 1 that are laterally adjacent to each other with separate nails or screws 3,
The distance L _{3 in} the height direction between the through holes and the marks 8 formed in the left end portions 1f and the step portion 1d provided at both left and right ends of the upper side underlap portion 1b1 of the same panel 1 is equal to the upper side underlap portion 1b1. The width in the height direction and the range within the width region in the height direction of the step portion 1d are set to have predetermined dimensions.

At this time, as shown in FIGS. 4 and 7, the positions of the through holes and the marks 8 formed in the stepped portion 1c in the panel width direction are the bases erected at the corresponding positions of the stepped portion 1c. Through holes and marks 8 formed in the left end portions 1f and the step portion 1d provided at the center positions 4a, 5a of the pillars 4 and the studs 5 serving as materials and at the left and right end portions of the upper side underlap portion 1b1 of the same panel 1 Is formed at the center position in the panel width direction.

In FIG. 10 (b), the through hole at the left end 1f of one panel 1 adjacent in the lateral direction and the position of the mark 8 correspond to the through hole 8 of the stepped portion 1d of the other panel 1. A nail or a screw 3 which is driven into the through hole of the left end 1f or the mark 8 in conformity with the position is also inserted into the through hole 8 of the stepped portion 1d and driven into the pillar by one nail or screw 3. 4 is an example configured to be fixed to the stud 4 or the stud 5.

According to the above configuration, the left end 1f of one panel 1 and the step 1 of the other panel 1 that are adjacent to each other in the lateral direction are arranged.
Since both panels 1 can be fixed to the base material such as the pillars 4 and the studs 5 by using one nail or screw 3 at the joint with d, the number of nails and screws 3 and the number of construction steps can be reduced to reduce the cost. Can be planned.

FIGS. 11 (a) and 11 (c) show an example in which the through hole 8 is an elongated hole whose longitudinal direction is set in the panel width direction. During actual construction, the pillar 4 and the stud 5 etc. Even if the center positions 4a and 5a of the base material in the panel width direction are deviated, the fixing positions of the nails and screws 3 are adjusted within the range of the elongated holes so that the base materials such as the pillars 4 and the studs 5 can be adjusted. The panel 1 can be fixed by driving nails or screws 3 into the center positions 4a and 5a in the panel width direction.

Further, as shown in FIGS. 5 and 7, a plurality of convex portions 1a3 are formed at a predetermined pitch along the panel width direction on the upper surface of the panel base portion 1a on the upper side of the panel, and the panel on the lower side of the panel is further formed. Grooves 1a4 corresponding to the protrusions 1a3 are formed on the lower surface of the base 1a along the panel width direction.

Then, the convex portion 1a3 formed on the upper surface of the panel base portion 1a of the one panel 1 adjacent in the height direction is
The other panel 1 is fixed by being fitted into the groove 1a4 formed on the lower surface of the panel base 1a of the other panel 1.

In FIGS. 5 and 7, a part of the convex portion 1a3 is cut out at the same height as the upper surface of the panel base portion 1a on the upper side of the panel, and the upper surface of the panel base portion 1a and the cutout portion are formed in the roof. It is composed of an inclined surface for draining to the outside. As a result, as shown in FIG. 12 (b), the rainwater received by the upper side underlap portion 1b1 and the right side underlap portion 1b2 and the rainwater entering from the fitting portion between the convex portion 1a3 and the groove portion 1a4 are not projected to each other. The water is drained to the outdoor side of the panel 1 through the cutout portion.

FIG. 14 shows an example in which the convex portion 1a3 formed on the upper surface of the panel base portion 1a is formed over the entire panel width direction, and the groove portion 1a4 formed on the lower surface of the panel base portion 1a.
Since it is formed over the entire panel width direction,
Also, the protrusion 1a3 shown in FIG. 7 and the protrusion 1a3 shown in FIG. 14 can be fitted in common.

Next, using the above panel 1, the outer wall surface A of the building
The mounting structure constituting the above will be described. First, as shown in FIG. 2, the waterproof sheet 2 is stretched on the pillars 4 and the studs 5 standing upright at a predetermined pitch, and the central positions 4 of the pillars 4 and the studs 5 are extended.
After aligning the left end portion 1g1 and the right end portion 1g2 of the panel base portion 1a, which is the vertical joint 6 of the panel 1, with a and 5a, as shown in FIG.
As shown in (b), the upper side underlap portion of the panel 1
A nail or a screw 3 is driven into the pillar 4 or the stud 5 to fix the left end 1f of 1b1 and the through holes of the step portions 1c and 1d or the mark 8 as a guide.

Next, as shown in FIG. 8 (a), when the panels 1 are laterally adjacent to each other, as shown in FIG. 8 (b), the upper side underlap portion of one fixed panel 1 is fixed. The upper side underlap portion of the other panel 1 on the step portion 1d of 1b1
The left end 1f of 1b1 is overlapped, and the back surface 1a1 of the panel base 1a of the other panel 1 that is post-joined on the right side underlap portion 1b2 of the fixed one panel 1 is overlapped.

Then, the nails or screws 3 are used as a guide by using the left end 1f formed in the upper side underlap portion 1b1 of the panel 1 to be joined later and the through holes of the step portions 1c and 1d and the mark 8 as a guide.
Alternatively, it is driven into the stud 5 and fixed.

Further, as shown in FIG. 9 (a), when the panels 1 are adjacently arranged in the height direction, as shown in FIG. 9 (b), the upper side underlap of one fixed panel 1 is fixed. Department
The lower end portion of the right side underlap portion 1b2 of the other panel 1 that is to be post-joined to the step portion 1c formed in 1b1 is overlapped, and the convex portion 1a3 formed on the upper surface of one fixed panel base portion 1a is attached to the rear portion. The groove portion 1a4 formed on the lower surface of the other panel base portion 1a to be joined is fitted to the other side panel 1 on the upper side underlap portion 1b1 of the one panel 1 which is fixed.
The back surface 1a1 of the panel base 1a of is overlapped.

As described above, the outer wall surface A of the building is formed by sequentially joining the plurality of panels 1 in the lateral direction and the height direction. A decorative member (not shown) is attached to the upper, lower, left and right ends of the outer wall surface A and the periphery of the opening 10 such as the window sash shown in FIG.

The upper side underlap portion 1b1 of the panel 1 is formed with step portions 1c and 1d projecting more toward the indoor side than the back surface of the underlap portion 1b1, and each panel 1 has the step portions 1c and 1d. Since the parts are fixed to the pillars 4 and the studs 5 with nails and screws 3, the underlap portion 1b of each panel 1 is lifted up from the surface of the waterproof sheet 2 by a predetermined distance except the step portions 1c and 1d. It is fixed in the closed state.

Therefore, as shown in FIG. 1 and FIG. 3, a ventilation layer is formed between the waterproof sheet 2 and the back surface of the underlap portion 1b in a continuous vertical and horizontal direction to protect the building from moisture and the like emitted from the room. A ventilation layer having more directionality than each of the above-mentioned conventional examples is ensured, and the ventilation performance is improved to improve the panel 1
And the durability of the building can be improved. Moreover, since the furring strips 55 are not required as in the above-described conventional examples, the number of parts can be reduced, the cost of parts can be reduced, the number of construction steps can be reduced, and the construction period can be shortened.

Further, in FIGS. 13A and 13B, the panel 1 is
Upper side underlap part 1b1 and right side underlap part 1b2
Square shaped water repellent over the entire underlap portion 1b 11
Is an example of the case where the upper side underlap portion 1b1 and the right side underlap portion 1b2 are integrally formed.

FIG. 13 (a) is an example in which a single strip of water return 11 is formed at the upper end of the upper side underlap portion 1b1.
(B) shows an example in which two strips 11 are provided side by side. By providing the water repellent 11 in double, it is possible to further improve the effect of the breakwater on the portion where the nail or the screw 3 is driven.
The outer shape and the number of threads of the water repellent 11 may have another shape or a plurality of other threads.

Each of the water return bars 11 is formed integrally with the panel 1 when the panel 1 is manufactured, and a portion corresponding to the shape of the water return bars 11 is formed in the form frame in advance. By press-molding a clay-like cement material using a mold, the panel 1 having the water repellent 11 formed on the upper side underlap portion 1b1 is manufactured at the factory.

According to the above construction, the back surface 1a1 of the panel base portion 1a of the adjacent panel 1 and the underlap portion 1b of the other panel 1 are joined and attached in the thickness direction of the panel 1. Thus, it is possible to perform dry construction that can prevent the intrusion of wind and rain without filling the vertical joints 6 and the horizontal joints 7 of the panels 1 with a sealing material or the like, and the construction is easy and the construction period can be shortened.

Further, the underlap portion 1b of the panel 1 has a plurality of step portions 1c and 1d which are different in the thickness direction of the panel 1.
Since it is formed to have a back surface 1a1 of the panel base 1a
And an upper layer underlap that can form a ventilation layer between the pillar 4 and the surface of the waterproof sheet 2 stretched on the stud 5, and is a part of the underlap portion 1b of the adjacent one panel 1. Step portions 1c and 1d formed in the portion 1b1,
Since the right side underlap part 1b2 and the left side end part 1f of the upper side underlap part 1b1 which are parts of the underlap part 1b of the other panel 1 can be respectively joined in the thickness direction of the panel 1, each panel 1 underlap part 1b
It is possible to secure a large area in which the stepped portion 1d and the left end portion 1f, which are the fixing portions, face the pillars 4 and the studs 5, and to securely fix the nails and the screws 3.

Further, a plurality of columns 4 and studs 5 are provided in accordance with the joining positions of the underlap portions 1b of the panel 1, and the central positions 4a, 5a of the columns 4 and studs 5 and the positions of the vertical joints 6 between the panels 1 are provided. By fixing the nails or screws 3 for fixing the panel 1 to the position where the vertical joints 6 and the horizontal joints 7 of the panels 1 are avoided in a state where the two coincide with each other, the positions of the vertical joints 6 of the panels 1 and the pillars are fixed. 4 and the studs 5 are aligned with the center positions 4a and 5a, the nails and screws are located near the center positions 4a and 5a of the columns 4 and studs 5 and at positions where the vertical joints 6 and the horizontal joints 7 of the panels 1 are avoided. It is possible to secure a fixing margin fixed by 3, and it is possible to securely fix the panel 1 to the pillar 4 or the stud 5 with nails or screws 3 while avoiding the vertical joint 6 or the horizontal joint 7 between the panels 1. .

As a result, the positions of the vertical joints 6 between the panels 1 and the central positions 4a, 5a of the pillars 4 and the studs 5 can be made to coincide with each other, so that the work of allocating the panels 1 to the pillars 4 and the studs 5 is easy, Since the panel 1 can be directly fixed to the pillar 4 or the stud 5, the furring strip 55 as in the above-described conventional example can be omitted to reduce the number of parts and the construction man-hour, and the construction period can be shortened.

Further, the left side end portion 1f of the upper side underlap portion 1b1 and the step portion 1d, which are joint portions where the underlap portion 1b of the panel 1 overlaps each other, are provided at the left and right end portions of the same panel 1, and the same panel 1 Left end 1 of both left and right ends
The distance L ₁ between the fixing positions of the nail and the screw 3 for fixing f and the step portion 1d in the panel width direction is opposite to the left end portions 1f and the step portion 1d at the left and right ends of the same panel 1, respectively. Center position 4 of the arranged columns 4 and studs 5 in the panel width direction
Since the distance L ₂ between a and 5a is equal to each other, the left end 1f and the step 1d of the upper side underlap portion 1b1 of the left and right end portions of the same panel 1 and the left and right direction of the panel 1 are arranged. The position of the vertical joints 6 of the panels 1 and the central positions of the pillars 4 and the studs 5 at the overlapping joint between the left side end portion 1f of the upper side underlap portion 1b1 and the step portion 1d of the right and left end portions of the adjacent panel 1 Even in the state where 4a and 5a are aligned with each other, the nails and the screws 3 can be securely fixed in the vicinity of the central positions 4a and 5a of the columns 4 and the studs 5 and at the positions avoiding the vertical joints 6 between the panels 1.

The upper side underlap portion 1b of the panel 1
By providing the through hole or the mark 8 at the fixed position of the nail or the screw 3 on the left end 1f of the 1 and the step portions 1c, 1d, the nail or the screw 3 can be positioned at a predetermined position by using the through hole or the mark 8. It can be easily fixed, and the panel 1 can be surely fixed even to the stud 5 having a relatively narrow width, and the workability is good.

In addition, the convex portion 1a3 formed on the upper surface of the panel base portion 1a on the panel upper side of one panel 1 adjacent in the height direction is attached to the panel base portion 1 on the lower side of the panel of the other panel 1.
When both the panels 1 are fixed by fitting the groove 1a4 formed on the lower surface of a, the panels 1 can be securely fixed to each other, and resistance to wind pressure and material warp can be secured. The panel 1 can be prevented from being cracked or distorted.

Further, unlike the first conventional example, there is no labor such as post-processing of the recess 51c of the front 51b of the panel 51, and the workability is good. Also, by forming the through hole and the mark 8 formed in the upper side underlap portion 1b1 of the panel 1 in advance in a factory or the like, it is possible to reduce the construction man-hours at the site, and the fixing position of the nail or the screw 3. Can be accurate.

In the above embodiment, an example in which the underlap portion 1b of the panel 1 is composed of the upper side underlap portion 1b1 and the right side underlap portion 1b2 has been described, but the panel 1 shown in FIG. The underlap portion 1b may be symmetrically formed of the upper side underlap portion 1b1 and the left side underlap portion.

15 and 16 show the panel base 1 on the upper side of the panel.
The convex portion 1a3 on the upper surface of a is eliminated to form a flat inclined surface, and the groove portion 1a4 on the lower surface of the panel base portion 1a is eliminated to form a flat surface. Even with such a panel 1, the outer wall surface A can be formed in the same manner as described above.

In FIG. 17, the back surface of the above-mentioned panel base 1a.
Instead of 1a1, it is composed of a front material (homozane) 1h, and the underlap portion 1b is composed of a reverse material (urazane).
An example of the panel 1 having an actual structure that is joined by fitting the both is shown. As shown in FIG. 17, the same structure as described above can be applied to the case of joining by mutual contact (aijakuri).

Incidentally, in the panel 1 having an actual structure, it can be fixed to the base material by using the above-mentioned fasteners 56 shown in FIG. 18 (b).

[0087]

EFFECTS OF THE INVENTION Since the present invention has the above-described structure and operation, it is possible to carry out a dry construction which can prevent the entry of wind and rain without filling the joint between the panels with a sealing material or the like. Providing a panel mounting structure that does not require post-processing, reduces the number of parts and construction work by omitting the furring strip, facilitates panel allocation work, and firmly fixes the panel to prevent flaking and distortion. You can

That is, since the back surface or the actual fruit of the panel base portion of one adjacent panel and the underlap portion or the actual fruit of the other panel are joined and attached in the thickness direction of the panels, the panels are attached to each other. It is possible to completely receive the infiltration water from the joint portion of the, and it is possible to greatly improve the water stopping performance. In addition, it is possible to perform dry construction that can prevent wind and rain from entering without filling the joints between the panels with a sealing material or the like, and the construction is easy and the construction period can be shortened.

Further, since the step portion is formed at a predetermined position of the underlap portion on the upper side of the panel or the end portion and / or the intermediate portion of the inner surface of the panel, a ventilation layer is formed between the back surface of the panel base and the base material. Further, the thickness of the panel can be obtained by using a step between the underlap portion or back portion of one panel and the underlap portion or back portion of the other panel which are adjacent to each other. Since they can be joined in the same direction, it is possible to secure a large area where the underlap portion or the back of each panel faces the base material, and it is possible to secure a sufficient fixing margin with nails or screws.

Therefore, it is possible to eliminate the positional deviation between the vertical joint and the center position of the base material such as a pillar or a stud in the panel width direction. Furthermore, each end of the panels combined in the panel width direction can be fixed with one nail or screw, and the panel can be directly attached to the base material such as pillars or studs without the need for a furring strip as in the conventional example. It can be fixed.

In addition, a plurality of base materials are provided in accordance with the joint positions of the underlap portions of the panel or the joints of the inner and outer layers,
When the nails or screws for fixing the panels are fixed at the positions where the center position of the base material in the panel width direction and the vertical joint positions of the panels coincide with each other and the joints of the panels are avoided, Fixing with nails or screws near the center position of the base material in the panel width direction and at a position that avoids joints between the panels even when the vertical joint position of the base material and the center position of the base material in the panel width direction match The margin can be secured, and the panel can be securely fixed to the base material with nails or screws while avoiding joints between the panels.

As a result, since the joint position between the panels and the center position of the base material can be matched, the work of allocating the panel to the base material is easy and the panel can be directly fixed to the base material, so that the furring strip is omitted. The number of parts and construction man-hours can be reduced, and the construction period can be shortened.

Further, the fixing position in the panel width direction of the nail or the screw for fixing the one panel fixed to the base material at the joining position of the underlap portions of the panel or the mutual connection of the back and true of each other, In the case where it is configured to be located at the center position of the base material in the panel width direction, the underlap portion or the underfill of the left and right end portions of the same panel and the left and right end portions of the panel adjacent in the left and right direction of the panel. At the joint position with the underlap part or the reverse side, even if the vertical joint position of the panels and the center position of the base material in the panel width direction are matched, the center position of the base material in the panel width direction and the joint between the panels The position where the nails or screws are fixed can be divided into the right and left at a position avoiding the above to securely fix them.

Further, when a through hole or a mark is provided at the fixing position of the nail or screw of the underlap portion of the panel or the back of the panel, the nail or screw can be easily fixed at a predetermined position using the through hole or mark. The workability is good because the panel can be securely fixed to the base material having a relatively narrow width.

Further, when the through hole provided at the fixed position of the nail or screw of the panel is an elongated hole whose longitudinal direction is arranged in the panel width direction, the nail or screw of the panel is aligned along the elongated hole. The fixing position can be continuously adjusted in the panel width direction and easily fixed at a desired position.

Therefore, even if the center position of the base material such as a pillar or a stud is displaced in the panel width direction, nails or screws are used in the panel width direction of the base material such as a pillar or a stud by using the long holes. It can be fixed at the center position of.

A convex portion is formed on the upper surface of the panel base portion on the upper side of the panel along the panel width direction, and a groove portion corresponding to the convex portion is formed on the lower surface of the panel base portion on the lower side of the panel along the panel width direction. When the convex portion formed on the upper surface of the panel base portion of one panel is fitted into the groove portion formed on the lower surface of the panel base portion of the other panel and both panels are fixed, Panels that are vertically adjacent to each other can be firmly connected by fitting the groove portions. Therefore, the panels can be securely fixed to each other, the resistance to wind pressure and the warp of the material can be secured, and the panel can be prevented from being warped or distorted.

When a part of the convex portion is cut out at the same height as the upper surface of the panel base portion on the upper side of the panel,
Rainwater can be drained from the notch.

When the groove is formed over the entire lower surface of the panel base on the lower side of the panel in the panel width direction, the protrusion and the groove are commonly engaged regardless of the presence or absence of the notch. It can be done.

In the present invention, the back side of the above-mentioned panel base portion is constituted by a front material (front surface) and the underlap portion is constituted by a back surface (urine), and by fitting the both. It can also be applied when joined. If the back surface of the panel base and the underlap part are joined together, the thickness of the panel cross section should be constant compared to the structure with actual (repeated) or reciprocal (ajakuri) joints. Since the weight of the panel can be reduced, the material used is reduced and the cost is reduced.

Further, when the conventional "actual, confluent structure" is formed by press molding, the material density tends to be different because the cross-sectional thickness is not uniform, and stable molding is difficult.
According to the above-mentioned embodiment which is different from the "actually confluent structure", since the cross-sectional thickness can be made constant, stable production can be performed without causing a difference in material density.

Further, in the case of the "actually confluent structure", since the thickness is smaller than the thickness of the panel main body, it is impossible to make the dimension too long from the viewpoint of strength, and therefore the waterproof performance is improved. However, in the case of the above-described embodiment, since the thickness of the cross section is constant, it is easy not only to solve the problem of strength but also to take a sufficient length in terms of waterproof performance. The overall performance as a wall material can be improved.

[Brief description of drawings]

FIG. 1 is a front explanatory view showing a panel mounting structure according to the present invention.

FIG. 2 is a perspective view illustrating a panel mounting structure according to the present invention.

FIG. 3 is a perspective explanatory view showing a configuration of a ventilation layer formed by the panel mounting structure according to the present invention.

FIG. 4 is a front explanatory view showing a panel mounting structure according to the present invention.

FIG. 5 is an explanatory perspective view showing the configuration of the panel.

6A is a schematic cross-sectional view in the XX direction of FIG. 5 and a diagram showing the overlapping state, and FIG. 6B is a schematic cross-sectional view in the YY direction of FIG. 5 and a diagram showing the overlapping state.

FIG. 7 is an explanatory front view showing the configuration of the panel.

FIG. 8A is an explanatory perspective view showing how left and right adjacent panels are joined together, and FIG. 8B is a partial enlarged view showing a joined state between underlap portions of left and right adjacent panels.

FIG. 9A is a perspective explanatory view showing a state in which vertically adjacent panels are joined together, and FIG. 9B is a partially enlarged view showing a joined state between underlap portions of vertically adjacent panels.

FIG. 10 (a) is a partially enlarged view for explaining the position of a through hole provided in the underlap portion of the panel, and FIG. 10 (b) is a state in which a nail is driven with the through hole provided in the underlap portion of the panel as a guide. FIG.

11A to 11C are partially enlarged views illustrating various through holes provided in an underlap portion of a panel.

FIG. 12 (a) is a cross-sectional explanatory view showing a state in which a convex portion formed on the upper surface of the panel base portion on the upper side of the panel and a groove portion formed on the lower surface of the panel base portion on the lower side of the panel are fitted and fixed to each other. , (B) are perspective explanatory views showing a state of drainage on the upper surface of the panel.

FIG. 13 (a) is a cross-sectional explanatory view showing an example in which a single strip of water is provided in the underlap portion on the upper side of the panel, and (b) is an example of a double stream of water strip provided in the underlap portion of the upper side of the panel. It is sectional explanatory drawing which shows.

FIG. 14 is a perspective explanatory view showing an example in which a convex portion is formed on the upper surface of the panel base portion on the upper side of the panel along the panel width direction over the entire panel width direction.

FIG. 15 is a perspective explanatory view showing a configuration of a panel in which a convex portion on an upper surface of a panel base portion on an upper side of the panel and a groove portion on a lower surface of a panel base portion on a lower side of the panel are omitted.

16 is a perspective explanatory view showing a state in which an outer wall surface of a building is configured using the panel shown in FIG. 15.

17A is a perspective explanatory view showing a configuration of a panel in which front and back fruits are formed, FIG. 17B is a cross-sectional schematic view in the XX direction of FIG. 17A and a diagram showing an overlapping state, FIG. ) Is YY of (a)
It is a cross-sectional schematic diagram of a direction, and a figure which shows an overlapping state.

FIG. 18 is a diagram illustrating a first conventional example.

FIG. 19 is a diagram illustrating a second conventional example.

FIG. 20 is a diagram illustrating a second conventional example.

FIG. 21 is a diagram illustrating a ventilation path of a conventional example.

[Explanation of symbols]

A ... Outer wall 1 ... panel 1a ... Panel base 1a1 ... Back side 1a2 ... upper end 1a3 ... convex 1a4 ... Groove 1b ... underlap part 1b1 ... Upper side underlap part 1b2 ... Underlap part on the right side 1c, 1d ... stepped portion 1e ... Inclined part 1f ... left end 1g1 ... Left end 1g2 ... right end 1h ... 2 ... Tarpaulin 3 ... nails and screws 4 ... Pillar 5 ... studs 4a, 5a ... Center position 6 ... Vertical joint 7 ... Horizontal joint 8 ... Through hole or mark 10 ... Opening

Claims (9)

[Claims] 1. A panel mounting structure in which panels arranged vertically and horizontally are attached by joining a back surface of a panel base portion of one panel and an underlap portion of the other panel in the thickness direction of the panel. A step portion is formed at a predetermined position of an end portion and / or an intermediate portion of the underlap portion on the upper side of the panel, and the step portion is used to make a part of the underlap portion of one panel and the other panel. A part of the underlap part of the panel is joined in the thickness direction of the panel, and both panels are fixed by nails or screws to the base material arranged at the joining position. The joints of the wraps are provided at both left and right ends of the same panel, and the fixing positions of the nails or screws that fix the joints at the left and right ends of the same panel are separated from each other in the panel width direction. Away is mounting structure of a panel which is characterized by being configured to be equal to the distance between the center positions mutual panel width direction of the base material disposed on the bonding position of the left and right end portions of the same panel. 2. The front and rear of one panel, in which the panels arranged vertically and horizontally are projected to the side end side from the panel base of the panel, and the other is projected to the side end side of the panel from the panel base. A panel mounting structure which is mounted by joining the back of the panel to the thickness direction of the panel, wherein a step portion is formed at a predetermined position of the end and / or the intermediate portion of the back of the upper side of the panel, By utilizing the stepped portion, a part of the backing of one panel and a part of the backing of the other panel are joined in the thickness direction of the panel, and both are attached to the base material arranged at the joining position. Panel mounting structure in which the panel is fixed by nails or screws, the joints between the inner and outer sides of the panel are provided at both left and right end portions of the same panel, and the nails fix the joint portions at the left and right end portions of the same panel. Or screw fixed position mutual panel Distance direction, the mounting structure of a panel which is characterized by being configured to be equal to the distance between the center positions mutual panel width direction of the base material disposed on the bonding position of the left and right end portions of the same panel. 3. A plurality of the base materials are provided in accordance with the joint positions of the underlap portions of the panel or the actual joints of the back and back, and a center position of the base material in the panel width direction and a vertical joint position between the panels. The panel mounting structure according to claim 1 or 2, wherein a nail or a screw for fixing the panel is fixed at a position where the joints are matched and the joint between the panels is avoided. 4. A panel width direction fixing of a nail or a screw for fixing one panel fixed to the base material and the other panel at the joining position of the underlap portions of the panel or the mutual connection of the inner and outer layers. The panel mounting structure according to any one of claims 1 to 3, wherein the position is configured to be a center position of the base material in the panel width direction. 5. The panel according to any one of claims 1 to 4, wherein a through hole or a mark is provided in an underlap portion of the panel, or a fixing position of a nail or a screw on the inner surface of the panel. Mounting structure. 6. The panel mounting according to claim 5, wherein the through hole provided at the fixing position of the nail or the screw of the panel is an elongated hole whose longitudinal direction is arranged in the panel width direction. Construction. 7. A convex portion is formed on the upper surface of the panel base portion on the upper side of the panel along the panel width direction, and a groove portion corresponding to the convex portion is formed on the lower surface of the panel base portion on the lower side of the panel along the panel width direction. The convex portion formed on the upper surface of the panel base portion of one panel is fitted into the groove portion formed on the lower surface of the panel base portion of the other panel to fix both panels. Item 7. A panel mounting structure according to any one of items 1 to 6. 8. The panel mounting structure according to claim 7, wherein a part of the convex portion is cut out at the same height as the upper surface of the panel base portion on the upper side of the panel. 9. The panel mounting structure according to claim 7, wherein the groove is formed over the entire lower surface of the panel base on the lower side of the panel in the panel width direction.